Hi,
The following new features in SSIS 2008:
Lookup Enhancement
Data Profiling Task
Pipeline Memory Limiter
Pipeline Performance - Multicast Transform and Threading in SQL Server 2008
VSTA support for Script Task and Script Component
Import & Export Wizard Enhancements
Brief explanation of leveraging SQL Server 2008 features in SSIS viz. CDC and MERGE statemen
You can refer the URL.http://www.sql-server-performance.com/articles/biz/SSIS_New_Features_in_SQL_Server_2008_Part1_p1.aspx
thanks hope it helps.